@ RUN: llvm-mc -triple armv8-none-eabi -mcpu=cortex-r52 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-ARM
@ RUN: llvm-mc -triple thumbv8-none-eabi -mcpu=cortex-r52 -show-encoding < %s | FileCheck %s --check-prefix=CHECK-THUMB
dfb
@ CHECK-ARM: dfb @ encoding:
@ CHECK-THUMB: dfb @ encoding: